DS1- Walked 10 months...VERY athletic and coordinated. Could throw a spiral with a mini football at 3, can dribble basketball between his legs at 5, could dribble a soccer ball while running at age 2.

DS2- Walked at 15 months...not so great on a big wheel at age 3, not super coordinated on playgrounds, not really a type of kid that seeks adventure, can bounce a ball to you but not too great at catching one. The cutest little musician you've ever seen!

I think a lot of it has to do with personality...it sounds crazy but I felt like I knew their personalities before they were even born.